I am also descended from the Anciras. The Anciras
came from Mexico City to Nuevo Leon about 1700.
The first Ancira was Clemente Ancira de Perez. He married
Josefa Villarreal. He had two sons, Diego and Jose.
I am descended from Jose. Many of Diego's descendants
settled around Villaldama which is not that far from
Bustamante. Bustamante used to be called San Miguel de Tlaxcala. There were Tlaxcalan indians that settled there.
If you recall when your grandfather was born you may be
able utilize the church records to make your connection
to Clemente. Look at this site:www.familysearch.org
The site is run by Church of the Latter Day Saints. They do
a lot of genealogy research.Some of their churchs also
have Family History Centers located where anybody even
non church members can do genealogy research. The LDS
fmicrofilmed many of the church records in Mexico. You
can order a copy from the LDS archives in Salt Lake City
to read at the Family History Center nearest you. This is
how I was able to do my research. I live in Denver. There is
one about a mile from my house. On the above site is
a Family History Center locator. You can locate the Center
nearest you and go there to order film. They have a Family History Catalog which you can do a place search for
Bustamante and look for the church records available on
line or at the center. It should take about 3 weeks to get
a film in. You have about 30 days on the first rental. You can renew the rental and keep it at the center for about another 45 days. The 3nd renewal should keep the film at the center as long as you need it there.
The above site also has a search engine. Use the IGI
to look for you ancestors. Not everyone on a film is the IGI
which is an index of the films. Some records are hard to read than others and not all film have been indexed. Getting
the film is the best way.
I hope this helps you!
Good luck !